Possible Clues:

• Slop - command to huskies!
• The sort of food to get the dogs moving
• 'Go, team!'
• Iditarod shout
• Face command to get a move on
• Hancock's mate's husky incitement
• Dog-sledder's 'giddyap'
• Pulpy mass - sloppy sentimentality - command to sled dogs
• Command to a husky
• Soft food in order for dogs